<!--
  $Id: stylesheet.html,v 1.19 2012-07-17 08:22:19 gaudenz Exp $
  Copyright (c) 2006-2010, JGraph Ltd
  
  Stylesheet example for mxGraph. This example demonstrates using
  a custom stylesheet and control points in edges, as well as
  overriding the getLabel and getTooltip function to return
  dynamic information, and making a supercall in JavaScript.
-->
<html>
<head>
	<title>Stylesheet example for mxGraph</title>

	<!-- Sets the basepath for the library if not in same directory -->
	<script type="text/javascript">
		mxBasePath = '../src';
	</script>

	<!-- Loads and initializes the library -->
	<script type="text/javascript" src="../src/js/mxClient.js"></script>

	<!-- Example code -->
	<script type="text/javascript">

		// Program starts here. Creates a sample graph in the
		// DOM node with the specified ID. This function is invoked
		// from the onLoad event handler of the document (see below).
		function main(container)
		{
			// Checks if browser is supported
			if (!mxClient.isBrowserSupported())
			{
				// Displays an error message if the browser is
				// not supported.
				mxUtils.error('Browser is not supported!', 200, false);
			}
			else
			{
				// Creates the graph inside the DOM node.
				var graph = new mxGraph(container);
			
				// Disables basic selection and cell handling
				graph.setEnabled(false);
				
				// Returns a special label for edges. Note: This does
				// a supercall to use the default implementation.
				graph.getLabel = function(state)
				{
					var label = mxGraph.prototype.getLabel.apply(this, arguments);
					
					if (this.getModel().isEdge(state.cell))
					{
						return 'Transfer '+label;
					}
					else
					{
						return label;
					}
				};
								
				// Installs a custom global tooltip
				graph.setTooltips(true);
				graph.getTooltip = function(state)
				{
					var cell = state.cell;
					var model = this.getModel();
					
					if (model.isEdge(cell))
					{
						var source = this.getLabel(model.getTerminal(cell, true));
						var target = this.getLabel(model.getTerminal(cell, false));
						
						return source+' -> '+target;
					}
					else
					{
						return this.getLabel(cell);
					}
				};
				
				// Creates the default style for vertices
				var style = [];
				style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_RECTANGLE;
				style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
				style[mxConstants.STYLE_STROKECOLOR] = 'gray';
				style[mxConstants.STYLE_ROUNDED] = true;
				style[mxConstants.STYLE_FILLCOLOR] = '#EEEEEE';
				style[mxConstants.STYLE_GRADIENTCOLOR] = 'white';
				style[mxConstants.STYLE_FONTCOLOR] = '#774400';
				style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
				style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
				style[mxConstants.STYLE_FONTSIZE] = '12';
				style[mxConstants.STYLE_FONTSTYLE] = 1;
				graph.getStylesheet().putDefaultVertexStyle(style);
		
				// Creates the default style for edges
				style = [];
				style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_CONNECTOR;
				style[mxConstants.STYLE_STROKECOLOR] = '#6482B9';
				style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
				style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
				style[mxConstants.STYLE_EDGE] = mxEdgeStyle.ElbowConnector;
				style[mxConstants.STYLE_ENDARROW] = mxConstants.ARROW_CLASSIC;
				style[mxConstants.STYLE_FONTSIZE] = '10';
				graph.getStylesheet().putDefaultEdgeStyle(style);

				// Gets the default parent for inserting new cells. This
				// is normally the first child of the root (ie. layer 0).
				var parent = graph.getDefaultParent();
								
				// Adds cells to the model in a single step
				graph.getModel().beginUpdate();
				try
				{
					var v1 = graph.insertVertex(parent, null, 'Interval 1', 20, 20, 180, 30);
					var v2 = graph.insertVertex(parent, null, 'Interval 2', 140, 80, 280, 30);
					var v3 = graph.insertVertex(parent, null, 'Interval 3', 200, 140, 360, 30);
					var v4 = graph.insertVertex(parent, null, 'Interval 4', 480, 200, 120, 30);
					var v5 = graph.insertVertex(parent, null, 'Interval 5', 60, 260, 400, 30);
					var e1 = graph.insertEdge(parent, null, '1', v1, v2);
					e1.getGeometry().points = [{x: 160, y: 60}];
					var e2 = graph.insertEdge(parent, null, '2', v1, v5);
					e2.getGeometry().points = [{x: 80, y: 60}];
					var e3 = graph.insertEdge(parent, null, '3', v2, v3);
					e3.getGeometry().points = [{x: 280, y: 120}];
					var e4 = graph.insertEdge(parent, null, '4', v3, v4);
					e4.getGeometry().points = [{x: 500, y: 180}];
					var e5 = graph.insertEdge(parent, null, '5', v3, v5);
					e5.getGeometry().points = [{x: 380, y: 180}];
				}
				finally
				{
					// Updates the display
					graph.getModel().endUpdate();
				}
			}
		};
	</script>
</head>

<!-- Page passes the container for the graph to the program -->
<body onload="main(document.getElementById('graphContainer'))">
 
	<!-- Creates a container for the graph with a grid wallpaper -->
	<div id="graphContainer"
		style="overflow:hidden;width:621px;height:311px">
	</div>
</body>
</html>
